725541741 has 12 divisors (see below), whose sum is σ = 1053327132. Its totient is φ = 481238016.

The previous prime is 725541737. The next prime is 725541811. The reversal of 725541741 is 147145527.

725541741 is a `hidden beast` number, since 72 + 5 + 541 + 7 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 355171716 + 370370025 = 18846^2 + 19245^2 .

It is not a de Polignac number, because 725541741 - 2² = 725541737 is a prime.

It is a super-2 number, since 2×725541741² = 1052821635866622162, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725541696 and 725541705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725541241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202836 + ... + 206381.

It is an arithmetic number, because the mean of its divisors is an integer number (87777261).

Almost surely, 2^725541741 is an apocalyptic number.

It is an amenable number.

725541741 is a deficient number, since it is larger than the sum of its proper divisors (327785391).

725541741 is a wasteful number, since it uses less digits than its factorization.

725541741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409420 (or 409417 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 725541741 is about 26935.8820349362. The cubic root of 725541741 is about 898.5745917971.

The spelling of 725541741 in words is "seven hundred twenty-five million, five hundred forty-one thousand, seven hundred forty-one".